spl: add support to booting with ATF
ATF(ARM Trusted Firmware) is used by ARM arch64 SoCs, find more infomation
about ATF at: https://github.com/ARM-software/arm-trusted-firmware
SPL is considered as BL2 in ATF terminology, it needs to load other parts
of ATF binary like BL31, BL32, SCP-BL30, and BL33(U-Boot). And needs to
prepare the parameter for BL31 which including entry and image information
for all other images. Then the SPL handle PC to BL31 with the parameter,
the BL31 will do the rest of work and at last get into U-Boot(BL33).
This patch needs work with patches from Andre for SPL support multi
binary in FIT.
The entry point of bl31 and bl33 are still using hard code because we
still can not get them from the FIT image information.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index f51ae2c..e324e24 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -693,6 +693,20 @@
means of transmitting U-Boot over a serial line for using in SPL,
with a checksum to ensure correctness.
+config SPL_ATF_SUPPORT
+ bool "Support ARM Trusted Firmware"
+ depends on SPL && ARM64
+ help
+ ATF(ARM Trusted Firmware) is a component for ARM arch64 which which
+ is loaded by SPL(which is considered as BL2 in ATF terminology).
+ More detail at: https://github.com/ARM-software/arm-trusted-firmware
+
+config SPL_ATF_TEXT_BASE
+ depends on SPL_ATF_SUPPORT
+ hex "ATF BL31 base address"
+ help
+ This is the base address in memory for ATF BL31 text and entry point.
+
config TPL_ENV_SUPPORT
bool "Support an environment"
depends on TPL